Mandrel for paper-winding machines.



- Invent!) 7": 560726.5- warmer."

G. B. WARNER.

MANDREL FOR PAPER WINDING MACHINES.

APPLIOATION FILED AUG. 21, 1911.

G. B. WARNER.

MANDREL FOR PAPER WINDING MACHINES.

APPLIOATION FILED AUG. 21, 1911 21,76,530 Patented 0ct.21,1913.

2 SHEBTS'SHBET 2.

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b State of Massachusetts,

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FITCHBURG, Massacnnsnrrs, ASSIGNGR To 12. 'r. Jamison. an, or BOSTON, mns'saoiiusn'rrs.

ivrannnnr ron rerun-WINDING rvracmnns.

intense.

To all whom it may conoerivq Be it known that 1,- GE on B. WARNER, a citizen of the United States, residing at Fitchburg, in the county of Worcester and have invented an 1 Improvement in Mandr'els for Paper-Wind Ting Machines,,of which the following del scription, in connection with theaccompany ing drawings, 'is faspecification, like letters on the drawings representing like parts. I The invention :tobe hereinafter described lrelates to machines'for winiiingpaper intd tubes or barrels,'.and more :specially to the mandrel on which the paper tubeor barrel is formed-and its associated parts. 1 In the formation of paper tubes and bar v "relslsitiis desirable that the layers of paper be suppliedwith an adhesive, at least on one surface and that the layers be wound uport a mahdrelor other like device, with sufli-' ient tension to produce a uniform and homogeneous rodu'ct. For the best results, the mandre when in expanded position, should have a continuous and uninterrupted'surface, preferably of cylindrical form, and it is desirable at the completion of the tube or barrel formation thatmeans be provided for readily removing the tube or barrel from the mandrel.

. The aims and purposes of the present invention are to provide a mandrel that will answer the general considerations above pointed out and to associate the mandrel "with appropriate devices, whereby on the completion? of the winding operation the conipleted .tube or barrel may be readily removed from' the mandrel."

- Other and further objects of the invention will appear from thefollowing description in connection with the accompanyingdrawings embodying one form of the invention, it being understood that the invention in its "ltruescopeis definitely defined. by the claims. Figure 1 shows 'in plan view a sufiicient portionofa paper winding machine to make clear theassooiation of the present invention therewith, portions of the frame being shown :in section and broken away; Fig. 2 is}; Side elevation, portions of the frame beirlg'ibroken away; Figs. 3 and 4 are enlarged sectionsion the line 3-3, Fig. 1 Fig. 5 is a sectionon'the-line 23- -5- of'hig. 4; Fig. 6 is a section' on-tl 'e'line 6 4 of Fig. 3; and Fig.

a section on' the line 7%? of Fig. 1.

Specification er Letters raisin.

provided with appropriate bearings he inaichine frar'ne r01 sustaining the op iPatentedGct. 21,1h1l3.

a plication mes Augustin, lei 1. Serial n0. ceases.

crating parts of the device may be of any approved character appropriate for the intended ;-.purpose', and" inthe present/drawings it is'shown as comprising uprights 1, rising" from the floor or other support and connected at their top portionby the cross beam 2. Suitably mo-unted'in the machine frame, as graphically indicated inFig. 1, is the. paper guiding roll 3, over which the paper comes from a suitable supply and from which it is drawnto be wound on the mandrel.

Suitably supported by the main frame is the main driving shaft 5, said frame being 6 and 7,- Figs. 1, 2 and 3, for said shaft; Loosely mounted upon the driving shaft 5 is the main driving policy 8, Figs. 1, 2 and 3, which may receive motion from any suitable source of power.

Mounted to slide longitudinally on the shaft 5 between the bearings '6 and 7 is the double cone 9,*Fig s. 1, Qand 3, having a circular recess 10 which is engaged by the bifurcated end of an operating arm 11, Figs. 2 and 3, said arm being detachably connect- .ed to the rod 12-which is mounted in suitable bearings 13, 14, secured to the cross beam 2 of the machine frame, as indicated in Fig. 2. Said operating rod 12 isrnounted ior iongitudinal movement in its bearings 13 and 14: and a spring lii interposed between a collar 16 secured to {said rod and the bearing l3n'ormally forces the rod '12 to the left, Fig. 2. Secured to the rod in' appropriate position for its intended purpose is the sleeve 17 connected by a link 18 to the arm 19 of an operating handle, the construction being such that upon inovemet-1t of the operating handle to the right, Fig. 2, the rod 12 may be moved longitudinally against the tension of the spring 15 to shift the cone toward the right on the driving shaft 5, all of which will be clearly apparent from. Fig. 2.

The present invention contemplates imparting rotative movement to themandrel through the driving shaft, and under such conditions it is desirable that when the loose pulley S is operatively engaged with the shaft-the mandrel may-be ircoly'rotated thereby, but when the driving pulley S; is disengaged from. operative engagement with the driving shaft, means he provided to quickly bring-the mandrel to rest. As one means to the above ends there is secured to the driving shaft adjacent the loose pulley 8, a collar 20 having a flange 21 surrounding a portion of the hub 22 of the driving pulley 8, said collar also having pivoted thereon at 23 an arm 24 for acting upon a friction band 25 to clamp the collar 20 and perforce the shaft 5 to the hub of the driving pulley 8. Similarly on the opposite side of the cone 9 there is secured to the shaft 5 a collar 26 having a flange 27 and carrying an arm 28 pivoted at 29, the end of which is adapted to operate a friction 36- to clamp the same upon the circular portion 31 of the bearing 7, the said arm 28 and the arm 24 having their end portions adapted to engage the cone portions on the cone 9, as clearly indicated by Fig. 3.

' From the construction thus far described it will be appairent that if the operating rod 12 be moved to the right by hand, Fig. 2, and held in this position by a lock or other device, the arm 24: will cause driving engagement between the loose pulley 8 and the shaft 5 from the friction band 25 and con: versely, the arm 28 willrelease the friction band 30 and permit free rotation of the driving shaft. Similarly when the cone 9 is moved to the left, his. 3, the arm 24 will release the loose pulleyh from driving connection with the shaft 5 and will cause the arm 28 to frictionally bind the band 30 on the circular portion Slot the bearing '2', thereby affording a frictional resistance to further rotation ofithe main driving shaft.

and bringing the same to rest; Ubviously, other forms of means may be provided for the above ends, but that described is a convenient] form of this feature of the invention.

Projecting-from the main frame is a bracket or arm 32 below the driving shaft 5,.Figs. 2 and 3, and above the shaft 5 is another bracket arm 33, preferably also secured to the bearing 7. Projecting rem the bracket arms 32, 33 are the pins or studs 34, which are axially alined to afford a hinged or pivotal connection with said brackets of a mandrel carrier 35.-

The mandrel at has a head portion mounted in the mandrel carrier as will hereinafter more fully appear, and such head portion of the mandrel is connected to the driving shaft 5 by means of a universal. joint, the center of movement of said universal joint being in the axial'line joining the studs or bolts 34, the construction being such that hpon swinging movement of the mandrel carrier 35 on its carrying belts or studs 34, the mandrel, carriedby the carrier, may likewise swing with relation to its operating shaft 5 without being op-' eratively disengaged therefrom.

The mandrel comprises a core 36, Figs.

3,- fl and 7 which extends longitudinally preferably tl i" of the mandrel and has a he i ;i n 37, 1" 3. The head portion 37 e: 1e mandrel has secured thereto a bearing sleeve 38 forming an enlarged head which, acts as a rotating support for the mandrel wi hin the mandrel carrier, as indicated in lllg 3,. said sleeve 38 being preferably secured to the mandrel head by means such as the screws 39, Fig. 3. The bearing sleeve 38 has secured to the end portion thereof a can piece 40, the two parts being preferably, tiough not of necessity, screw-threaded together as indicated in Fig. The cap 40 may be otherwise secured to the mandrel head, its purpose being to impart through its connection with the driving shaft, rotative movement to the mandrel.

The cap 40 has the arms 41 and the end of the driving shaft 5 has a similar cap or bifurcated device 4-2 the arms as of which,

as indicated in 3, are disposed substantially at right angles to those of the arms 41 of the cap 40. The bifurcated device 42 may be secured to the end of the shaft 5 in any appropriate Way as by the pin 44,

' l? 1g. 3. Disposed between the ends, the arms of the ca piece, at) and the arms of the bifurcated piece as, is the usualswivel block l5 constituting a connection between the cap 40 and the bifurcated piece. 42 having pivotal connections with eachat substantially right angles as usual in the universal or gimbel joint.

From the construction thhs fardescribed it will be apparent that whilev themandrel may be driven directly from, thedriving shaft through the interposed connections described, it may also-swlng'withthe mandrel carrier 35, ast'he lattenis moved.- npon'its pivotal supports Elm-and the mandrelfthen take up a position as indicated by dotted lines in Fig. 1.

The core 36 of the mandrel is provided with a longitudinal slot, as indicated in Figs. 8 and 'Z, in which moves. theinandrel slide i6, said slide having a series of inclined or wedge portion's,-7,.Fig. l, adapted to engage and cooperate with; simil clines 48 on a mandrelexpander wwhich extends the full length-of the mandrch The number of wedge portions or inclines on the slide and the corresponding inclined portions on the mandrel expander may of,

course be varied, the essential being that unon longitudinal movement of the man- *2'.: 5:4 "0 m U 4r uie; b 'uxi lo, the expander i) ma be prop erly perated.

in order to prevent longitudinal move ment of the expander, the latter may be provided with slots 56 adapted to engage suitable pins 51, the constuctiOn being such that said slots and pins permit in and out radial movement of the expander with re spect to the core of the mandrel, but prevent longitudinal 1 movement of the ex.-

-'fore pointed out.

pander. wSecured to theooreof: the mandrel is a cap piece 52, Fig. 7 bctweenwhich and the core 36 are hinged the tW-o mandrel sections 53, one at each side of the mandrel,

From the construction this far described 'it willbe noted that the, mandrel 4: c'o.m

prises a core portion --exte'nding iongitudiv: nally of the mandrel andrhavinga head-B7;

' projectin from one end thereof, '1 and that said lie-ad forms 'appropriatemeans for ens-1 taining the mandrel in the mahdrel oari rier '4 When the mandrel is inz operative'f rela tion with the driving pulley 8, it is desirable that it be in expanded. condition, and-that its end opposite the-drivingshaft 5 be :pro'p "the present invention contemplates abracket erly. supported. "As one means to this end .54, igs. "1 I and 2,, secured "to the machine frame 1, said bracket having a guideway for a slide block 55:, Figs. .1, 2zand-5, which is T 'flanges 56, as best shown'by l lig. 5. Extend-g held in itsgu'ided position bymeans of the 'ing longitudinallythrough the slide block *ie'nlarged nut or 'he-ad..59, thebonstruction 1 555 is a shaft 57,se e Figsfa and 5, oneend of which carries the mandrel supporting cap 58 and the other en dgof which has the being such that while the shaft 57'may ro-" tate in the slide block 5.5.,it is confined to "longitudinal movementf'with said slide 40 block. Disposed'between, the end of the fslide block 55 and the 'cap' portion 58 are suitableantifriction rollers-60, Fig. 41-.

" In order that the slide block 55 may be eonveniently oved to ca e cap 58 to engage or disengage'the end of the mandrel,

"said block is connected by a link 61 to the 1 short arm 62 ofabell crank-lever comprising the'hand1e63, said link-61 being pivoted "to the block at 64, all as clearly indicated in Fig.1 and the construction being such that upon movement of the handle 63 from the ni iates dotted line position, Fig. l, the slide block '55, and perforce .the cap 58 will be moved away from the end of the mandrel and conversely, upon movement of the ban- 5 dle 63in the reverse direction the cap 58 *will be caused to engage the end of the mandreLandby-acting upon the end of the slide "dt'ocausesaid slide to move to the right against the action of the slide spring 65, as indicated in Figs. 3 and 4-, it being understood that the slide spring 65 atthe right; .end ofthe mandrel, Fig. 3, acts, normally to move'theslide 46 to the left to permit thei mandrel expander to move radially ainwardm and that the left end of the slide 46 projects at suchtimes, somewhat beyond the end of the mandrel. a I

- From the construction thus far described it willibe noted that if the mandrel be in the dotted line position, as indicated in Fig. 1, it Wlll ibQKGOIItIHClJBd, that is, the slide 46 f. will be held to the left or ina direction to permit the expander 49 to move radially inward,"the endof the slide at such times being somewhat beyond the end of the mandrel. It now the mandrel be moved into full line position, Fig. 1,. and the slide block '55 he moved to cause the cap 58 to engage-the- .end of the mandrel, said cap will first cause the slide 4-6 to move to the right against the act-ion oftliespring 65 and thus expand the .inandrel intoits desired dimension for receiving-the paper.

Inasmuch as the paper is Wound upon the mandrel'with considerable tension and in- .asmuch also that the winds of paper may bind upon the mandrel, it is desirable that.

means may be provided so that when the mandrel is swung from its full to its dotted line position in Fig. 1, the paper tube or 7 barrel may be readily pulled or removed longitudinally therefrom. As one means to this end the invention contemplates the following mechanism, as indicated more clearly in Figs. 1 and 2. Pivotally mountedat 66,

Fig. '1,on a bracket 67 secured to the mandrelcarrier 85 is a handle 68. Surrounding the mandrel at'theend theijeo'f adjacent the mandrel carrier is a ring Which'is operatively connected with the handle 68-. for movement longitudinally of the mandrel. As one means of connecting the ring 69- to the handle 68 said ring may be provided with pins 70 diametrically disposed and projecting into suitable sockets of the encircling ortion of the handle .68, as clearly indicated 1n Figs. 1, 2 and 3, the construction being such that when the handle (i8is moved to the left, the ring 69 will be caused to move longitudinally of the mandrel and. engage the end of the paper tube orsbar'rel 71, Figs. 1 and 2, and detach it from any adherence upon the surface of the mandrel so that it may be readily pulled off by hand when the mandrel is swung to its outer or dotted line position, as indicated in Fig. 1. The handle 88 projects to the front of the machine, as indicated-in Figs. .1 and 2, and the ring 69 normally rests, as indicated by' full lines in From the construction thus far described it'Will be apparentthat when the mandrel is moved into theposition shown by full lines in Figs, 1 and 2,and the cone 9 is mgved :to-the right,the driving shaft, and perfomcnthe mandrel, will. be properly eatatedteav ndthemnernponthe m ndrel,

Imh

the latter being at such time in its fully expanded posit-ion. Upon completion. of the winding opcntion the handle 53 will be moved to the left, Fig. l, whereupon by force applied to the handle as, themandrel may be swung into the dotted line position. The mandrel having been swung to the dotted line position, as indicated in Fig. 1, the handle 68 may be moved to the left to thereby carry the ring GS) longitudinally of the mandrel to detach the tube or barrel therefrom. Owing to the ring sliding longitudinally of the mandrel, the end of the tube or barrel only is engaged thereby and by appropriate force applied to the handle 68 said tube or barrel may be slid-longi tudinally of the mandrel as the latter is at this time in contracted condition, all as will be clearly understood from the foregoing.

VVhil'e the detailed mechanism herein before described and as shown in the drawings constitutes a convenient form ,Olhlillt'i present invention for carrying the latter into practical efiect, it is tobe understood that the invention is not circumscribed by such details but that they may be variously changed as to the form and general character within the true scope of the invention as pointed out by the claims,

It may at times be desirable that when swinging the mandrel from its dotted to its full line position, Fig. 1, means he provided to indicate when the free end of the mandrel is in proper position to be engaged by the cap 58 and tothis end/a stop may be cmployed to engage one of the flanges of the mandrel carrier as the latter and the. mandrel swing backward into full, line osition,

Fig. 1. Such stop is indicated at 3, Fig.

.before described as one embodiment of the invention that the handle 68 not only serves as means for detaching. the paper tube or barrel from the'mandrel, but also serves'as a means for-moving the mandrel and "the mandrel carrier about the pivotal connections of those parts of the frame to place the mandrel in positidn foriremoving the tube or barrel from the mandrel.

Vv hat is claimed 1st I 1. In a machine for winding paper into tubes or barrels, the combination of a driving shaft, a mandrel operatively connected. to and operated by said shaft, a mandrel expanding do ice, a mandrel carrier pivotally connecter to the machine'frame and carrying said mandrel to permit one'end thereof to be swung away from the machino for removal of the paper tube or bar-- lengthwise therefrom while still mainning the operative connection between said mandrel and driving shaft, means to operate the mandrel expanding device "to permit concentration of the mandrel as it is so swung, and meansfor swinging the mandrel transversely of the shaft and detaching the paper tube or barrel therefrom.

2. In a machine for winding paper into tubes or barrels, the combination of a drivmg shaft, a mandrel carrier pivotally connected to the machlne frame to swing transversely of said shaft, a mandrel having'a head mounted in said carrier, and driving ermittin the mandrel to be SWHHQ outward with the carrier while maintaining the said mandrel in operative relation with said shaft, and means for detachably holding the end of the mandrel opposite said mandrel carrier.

l; In a machine for winding paper into tubes or barrels, the combination of a driving shaft, a mandrel carrier pivotally connected to the machine frame to swing trans versely of said shaft, a mandrel having a head mounted in said carrier, driving connections between the mandrel and said shaft permitting the mandrel to be swung outward with the carrier while maintaining the said mandrel in operative relation with said. shaft, and means movable longitudinally of the mandrel for detaching theipaper tube or barrel from the mandrel.

5. In a machine for winding paper into tubes or barrels, the combination of ma-n-.

drel having a head projecting at one end of the mandrel, a mandrel carrier in which said mandrel head is rotatably mounted, a driving,- shaft, driving connections between the mandrel head and driving shaft for-roice tating the mandrel and which permits of the I mandrel being swung outward with the carrier while maintaining the mandrel 1n operative relation with sa1d shaft, and pivotal connections between thev mandrel carrier and frame of the machine permitting it and the inandrel to be swung relatively to said shaft.

. 6. In a machine for winding pa er into tubes or barrels, the combination o a mandrel having' 'a head projecting at one end of the mandrel, a mandrel carrier in which said mandrel head is rbtatively mounted, a. driving shaft, connections between the manthe mandrel, and

' being pivotally novesee drel head and driving shaft for rotating the mandrel, pivotal connections between the mandrel carrier and frame of the machine permitting it and the mandrel to be swung relatively to said shaft,a ring mounted on a single or unitary device for swinging the mandrel outward and mo ing said ringlongitudinally of the man drel. for removing thetubeor barrel from the mandrel when it is so swun 7. In a machine for winding paper into tubes or barrels, the combination of a collapsible mandrel having ahead projecting from one end of the mandrel, a driving shaft, driving connections between the head of the mandrel and saiddriving shaft, a mandrel carrier in which said mandrel head is rotatably mounted, said-mandrel carrier being pivotally mounted on an axis intersecting the axis of said driving shaft and adapted to swing laterally, and means actuated as the mandrel and carrier are swung outward to permit the mandrelto be collapsed.

8. In ajmachine for winding paper into tubes or barrels, the combination of a collapsible mandrel having a headprojecting from one end of the mandrel, a driving shaft, driving connections between the head of the mandrel and said driving shaft, a mandrel carrier in which said mandrel head is rotatably mounted, said mandrel carrier mounted on an axis intersecting the axis of said driving shaft and adapted to swing laterally, means actuated as the mandrel and carrier are swung outward'to permit the mandrel to be collapsed, and means movable longitudinally of the mandrel to detach the paper tube or barrel therefrom.

v 9. In a machine for winding paper into tubes or barrels, the combination of a mandrel carrier pivotally. mounted on the ma chine frame, a,mandrel having a head projecting at one end and rotatably mounted in said mandrel carrier, a driving shaft, universal joint drivingconnections between the mandrel head and said shaft disposed in the pivotal axis of the mandrel carrier adapting said mandrel and carrier to be swung laterally, and'means actuated as the mandrel carrier and mandrel are swung outward to permit collapse of the mandre 10. "In a machine for winding paper into tubes or barrels, the combination of a mandrel carrier pivotally mounted on the machine frame, a mandrel having a head projecti'ng at one end and rotatably mounted in said mandrel carrier, a driving shaft, unicrsal joint driving connections between the mandrel heal and said shaft disposed in the pivotal axis of the mandrel carrier adapting said mandrel and carrier to be swung laterally,1'neans actuated as the mandrel carrier and mandrel are swung outward to per mit collapse of the mandrel, and a ring mounted loosely on the mandrel and mov able longitudinally thereof to detach the paper tube or barrel from the mandrel when it is swung outward. I v

,11. In a machine for winding paper into tubes or barrels, the combination of a drivlnv' shaft, a mandrel c arrier pivotally connected to the machine frame to swing transversely of said shaft, a'mandrel having a head mounted in said carrier, driving connections between the mandrel and said'shaft permitting the mandrel to be swung outward with the carrier while maintaining the said mandrel in operative relation with said shaft, and a stop to limit the inward swing of the mandrel.

12. in a machine for winding paper into tubes or barrels,;the combination of a collapsible mandrel having an enlarged head portion projecting from one end of the man drel, a mandrel carrier pivotally connected to the machine frame and having a bear: ing portion for rotatably supporting the enlarged head portion of the mandrel, means for detachably connecting the head portion of said mandrel and bearing of the mandrel carrier, a driving shaft, and connectionsim eluding as a part thereof a universal 'oint between the driving shaft and head o the mandrel to permit the mandrel to-be swung outward from the machine while maintaining uninterrupted driving connect-iouwit-h the driving shaft.

13. In a machine for winding paper into tubes or barrels, the combination of aidriving shaft, a collapsible mandrel alinedwith said shaft when in winding position, driving connections between the mandrel and shaft, a mandrel carrier having a bearing portion for rotatably supporting one end of the mandrel, pivotalconnectionsbetween the mandrel carrier and machine frame to permit the mandrel carrier and mandrel to be swung outward from the machine, a longitudinal bearing for the opposite end'of the mandrel,

and means to expand the mandrel by longitudinal movement of said bearing.

14. In a machine for winding paper into tubes or barrels, the combination of a driv-- ing shaft, a collapsible mandrel alined with said shaft when in winding position, driving connections between the mandrel and shaft, a mandrel carrier having a bearing portion for rotatably supporting one end of the mandrel, pivotal connections between the mandrel carrier and machine frame to permit themandrel carrier and mandrelto be swung outward from the machine, a longitudinal bearing for the opposite end of the mandrel,

means to expand the mandrel by longitudinal movement of said bearing, and means operating when the free end of the mandrel is swun outward to permit collapse of the mandre I. In a zznae ihe iiuhes er l'wureie he 00 h1g5 shaft, 21 mumps saidshmfi; when in Wm ing eerr nect me hezween zdrel and she c 1, bearing p01 ddy J g one end 01"? the Qndreh piveia l eenne S he Ween the 'c earner and mm emliezr w d nmndzei he be 2.0m Hue whhle, a Mnggitm dim, '5' mg for The e end of the mandrei, emails to ex 'mnd the nmndrel by longitudinal movementszvld hearing,

means operating when the free end of the mandrel is swung outward tepermit c01- lapse of the mandrel, and a ring mounted at on end of the mandrel for detaching the paper tuhe 01 barrel .When the mandrel is swung outwaed.

In testimony whereof I have signedmy name to 'this specification, in the presence of i'wo subscribing Witnesses.

GEORGE B. "WARNER.

Witnesses HARmSON BAILEY, EMMA A. WHERE-n". 

